Home / 21,347.42-29,461.12-12,397.73

Finding the Fourth Proportional to 21,347.42, 29,461.12 and 12,397.73

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Solution

The fourth proportional to 21,347.42, 29,461.12 and 12,397.73 is: 17,109.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,347.42 : 29,461.12 = 12,397.73 : x
  2. Step 2: Convert to fraction form
    21,347.42/29,461.12 = 12,397.73/x
  3. Step 3: Cross multiply
    21,347.42x = 29,461.12 × 12,397.73
  4. Step 4: Simplify right side
    21,347.42x = 365,250,832.96
  5. Step 5: Solve for x
    x = 365,250,832.96/21,347.42
  6. Step 6: Final answer
    x = 17,109.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.